wright



3 Sheets-Sheet 1. E. WRIGHT.

LOOM.

(No Model.)

- No. 452,328. Patented May 12, 1 891.

11 1/5 IYtUI' @6466 W" (No Model.) 3 Sheets-Sheet 2. E. WRIGHT.

LOOM. No. 452,328. Patented May 12, 1891.

(No Model.) 3 Sheets-Sheet 3 E. WRIGHT.

LOOM.

No. 452,328. Patented May 12, 1891.

Ens ca, mam-m WASNINGTGN u c UNITED STATES PATENT OFFICE.

EDWVARD WRIGHT, OF XVORCESTER, ASSIGNOR TO THE DAVIS & FURBER MACHINECOMPANY, OF NORTH ANDOVER, MASSACHUSETTS.

LOOM.

SPECIFICATION forming part of Letters Patent No. 452,328, dated May 12,1891. Application filed September 25, 1890. Serial No. 366,158. (Nomodel.')

To alttuhom it may concern: transverse section at line to, Fig. 1. Fig.4

Be itknown that I, EDWARD WVRIGHT, acitiis a side view of the throw-offlever. Fig. 5

zen of the United States, residing at VVorcesis an end view showingportions of the shedter, in the county of Worcester and State of dingmechanism and the shipper connections,

5 Massachusetts, have invented a new and usethe pattern-chains beingomitted. Fig. 6

ful Improvementin Looms, of which the folshows in plan and side detailthe shipper-rod lowing, together with the accompanying drawjoin t. Fig.7 shows in detail the arrangement lngs, 1s a specification sufficientlyfull, clear, of the vibrator-bar, crank-gear, cylinder-gear, and exactto enable persons skilled in the art dog, and vibrator fall-stop orlift-bar. Fig.8

IO 'to which this invention appertains to make shows a front view of theret-ractor with adand-use the same. justable engaging-plates. Fig. 9 isa detail My present invention relates more espetop view showing thearrangement of the viorally to that kind of looms having shedding bratorfall stop or lift and one of the vibratorand shuttle-boX-operatingmechanism similar bars and its connections. Fig. 10 is a detail 15 tothat described in Letters PatentNo. 425,843, sectional view showing theflanged sleeve,

heretofore granted to me. hub, and collar with the relieving-pin and Oneob ect of my present invention is to throw-off stud. afford a s1mple andefficient means for reliev- Referring to parts, A indicates the frame;

ing the parts of the shedding mechanism from B, the swing-jacks; C, thecylinder-gear; D, 20 strains, and to stop the loom to prevent damthevibrator-bars; E, the connecting-bars; F, age to the shedding harness orshuttle-box the crank-gears; G, the head-operating shaft, operatingmechanism in case any part of said and G the beveled gears that connectsaid mechanism becomes caught or fails to peroperating-shaft with theaxle O of the cylinform its proper action. der-gear. 25 Another objectis to provide a convenient The above-named parts can be constructedsystem of shipper connections adapted for and relatively arrangedsubstantially as set operation either by hand or by the automatic forthin Letters Patent No. 425,843, heretostop mechanism. 7 fore granted meon April 15, 1890, and there- Another object is to provide a convenientfore need not be herein more particularly de- 30 means forsimultaneously elevating all of the scribed; but features of improvementthat vibrator-bars for throwing their gears into pertain to the presentinvention will be exmesh with the cylinder-gear, so that the mechplainedas employed in connection therewith. anism can be given partial rotationforward That part of my invention which has referor backward to bringall the jacks even with ence to the relief and throw-off devices com- 35 each other, and thus close the shed to facilitate prises meanssubstantially such as shown in repairing break-outs of the warps or forany Figs. 1, 2, 5, and 10. The clutch-ring 7L, that other purpose whendesired. is moved by the fork h and which connects Another object is toprovide the retractor with the hub of the driving-gear H, is arorunlocking bar with an adjustable engagingranged upon a sleeve J andconnected there 4 plate adapted for releasing the dogs when the with bya spline, so as to be longitudinally loom is stopped by movement of saidplate, if movable but not rotatable thereon. The desired. sleeve runsloose upon the shaft G and is These objects I attain by mechanism theflanged at its upper end, as shown at j. A nature and operation of whichare shown and flanged hub K is tightly keyed or secured by 5 45described, the particular subject matter set-screws to the shaft Gradjacentto the end claimed being hereinafter definitely specified. ofthe sleeve, and above said hub K there is In the drawings, Figure 1 is arear View of a flanged collar L, that slides freely on the such parts ofa loom as will illustrate features shaft G, while passing through orsupported of my present invention. Fig. 2 is a transby said hub K is amovable stud or piece K, I00 50 verse section of the shaft that operatesthe one end of which rests within an inclined loom-head at line m 00,Fig. 1. Fig. 3 is a groove J in the top end of the sleeve J, while itsother end supports the sliding collar l... The tlange j of the sleeve .1and the llange 7; of the hub K stand adjacent to each other and areperforated to receive a pin 1, (one or more, if desired) which isinserted therethrough, as indicated, for making the power connectionbetween the clutch and shaft and transmitting the rotative force fordriving the shedding mechanism or loom-head, while the clutch 71 can bethrown into and out of action, as desired, without interfering with thepin, the action being the same as with a simple clutch, so long as thepin P remains intact. Said pin P is of such size that it will transmitthe requisite power for the ordinary working of the loom, but not solarge but that it will give way or become sheared off in the event ofany undue or severe resistance or accidental catch in the action of theshedding mechanism. The flangesj and 7.1 are best provided withhardened-steel dies 1" fitted therein (see Fig. 10) for receiving thepin I, and which facilitate the shearing off of said pin without damageto the edges of the opening wherein said pin is inserted. The pin can bean ordinary split pin or a piece of bent wire, so as not to be liable toescape from position. An angle-lever M, fulerumed on an arm of the frameat M, engages with the sliding collar L by its end resting on thecollar-flange or in other suitable manner. Said lever has its oppositearm connected by a rod M with an arm or level-m, that is fixed on theend of the rocker-shaft N, by which the shipper is operated.

Iivoted on the forward part of the frame is a hand-lever n", whichengages with the end of lever m by suitable gear-teeth. The shaft Nextends across the breast of the loom and is provided with a crank orarm N for working the shipper-rod N and clutch V, which lattercan be ofthe usual well-known kind. The connection between the arm N and rod N Iconstruct as shown in Figs. 5 and U. A pair of knuckle-joint arms notconnect the rod N with a stud u", that is fixed in the frame A, and alink or bar N connects the central hinging point of said knuckle-jointwith the crank N of the rocker-shaft N, so that movement of said shaftstraightens or bendsthe knuckle-joints, operates the rod N and throwsthe driving-clutch V into or out of engagement, as required. Therockershaft Nand shipper are thus conveniently operative either by meansof the hand-lever a or by the throw-01f of the relief mechanism.

In case of any derangement or failure to properly operate in thevibrators and shedding mechanism, which would occasion a stoppage in theaction thereof and be liable to break the machinery, the strain isrelieved by the breaking or shearing off of the pin 1, and when suchshearing action takes place the shaft G is released and stops, while thesleeve K continues to revolve and the inclined surface J 2 forces upwardthe stud K, which in turn lifts the collar I1 and end of the angieleverSheausing a backward draft upon the rod M which works the rocker-shaftand shipper mechanism, and thus throws otf the clutch and immediatelystops the entire loom.

I am aware that a relief and throw-off device, in combination with thehead-operating shaft in a loom, has been described in Letters Patentheretofore granted, but of a construction and manner of operationessentially different from that herein specified and claimed.

Another feature of my invention consists in providing beneath the outerend of the vibrator-bars an eccentrically pivoted bar R, that extendsacross the space beneath the vibrators, and has its end pivots supportedin suitable bearings preferably attached to the guide-bar '1. (See Figs.1, 7, and 9.) Said bar R is provided with an outwardly-extending arm 0',by depressing which the inner edge or eccentric portion of the bar isturned upward beneath the ends of the vibrator-bars, therebysimultaneously lifting all of said vibratorbars so as to bring theircrank-gears F into engagement with the cylinder-gear G. Then by turningsaid eylinder-gear a (piarter-revolution by means of the hand-crank 0all of the jacks 13 and harnesses are brought into line, or even witheach other, so as to close the shed to facilitate repairs in anybreakdown of the warps, or for any other purpose, as desired. Byreturning said eccentric-bar to its normal position the vibrator-barsare immediately again thrown onto the control of the pattern-chain Dwhich is of wellknown kind and operation. The eecentrieallypivoted barserves as a fall-stop for the end of the vibrator-bars and also as alifter for simultaneously elevating all of the vibrators intoengagement. In the present instance, and preferably, two of theselifting fall-stop bars are employed, one for the vibrators,which controlthe harness-jacks, and one for the vibrators that control theshuttlebox-actuating jacks. The guide-bar T is pivoted at its ends inthe frame A,so as to swing outward and downward to facilitate removal ofthe vibrator-bars, and is held in upright position by bolts a, thatconnect its upper part with the frame, substantially as described in myprevious patent.

The dogs I forloeking the vibratoror crankgears F are made substantiallyas indicated in Fig. 7. The dog slides longitudinally on thevibrator-bar and is provided with a spring 1', the ends of which aresecured to the projecting ears of the dog, and the center of said springis made with a downward point or curve adapted to engage in a notchformed in the upper side of thcvibrator-bar, as illustrated, wherebysaid dog is retained when in normal position.

The retractor 8 is provided on its shaft with u p wardly-proj ectin gears (hand the actuating arms 10, that work in connection with the camsc on the cylinder-gem axle, are arranged to slip over the axle or shaftof the retractor and have backwardly-projectin g slotted arms thatrespectively match against and are bolted to the ears 9 on theretractor-shaft, as indicated, whereby the position of the arms 10 inrelation to the retractor-bar can be conveniently adjusted to bringtheengaging dogs of the retractor-bar accurately into place in relation tothe notches of the dogs.

The retractor-bar, in accordance with my present invention, is providedwith a movable engaging plate 11 along the face thereof, which plate isprovided with a series of inclined slots, through which the attachingbolts or screws are arranged, as at 12, so that longitudinal movement ofsaid plate will raise it from engagement with the dogs. This movableplate 11 facilitates the removal of any of the vibrator bars and dogsfrom the loom, since it can readily be raised from engaging position.Longitudinal movement of the engaging plate in opposite direction lowersit to its normal position. The plate is best provided with a suitablegrip-handle and looking device 13 to facilitate moving it and forretaining it at normal position.

The movable engagingplate 11 for that part 18 of the retractor thatcontrols the dogs of the sh uttle-box-operatin g mechanism can be madeas shown atthe rightin Fig. 8, viz: with an upright slot and set-screw15 for affording adjustment instead of the diagonal slots. The part 18of the retractor, which controls the shuttle-box operating mechanism, isfitted as a sleeve or auxiliary upon the axle of the main retractor 8,and is supported thereon in a manner tohave independent movement, thesame being provided with arms 10, that engage auxiliary cams on thecyl'inder-gearaxle for effecting action of said auxiliary retractorindependently of the main retractor that controls the dogs of theshedding mechanism.

The arrangement of the harnesses with the swing-jacks, the pattern-chainD its rotator, and operating-gearing for intermittently advancing thesame can be of well-known kind and the general operation of suchmechanism similar to that heretofore employed.

I claim as of my invention, to be herein secured by Letters Patent 1.The combination, with the head-operating shaft that transmits power tothe shedding mechanism and its operatin g-gearin g and clutch, of theflanged sleeve mounted loose on said shaft and supporting theclutch-ring, the flanged hub fixed on the shaft, and the pin P, arrangedthrough the flanges of said sleeve and hub and forming thepower-transmitting connection, substantially as and for the purpose setforth.

2. The combination, with the shedding mechanism, its operatingshaft,operatinggear, and clutch, of the loose sleeve J, carrying theclutch-ring h and provided with an inclined surface J a hub fixed onsaid shaft adjacent to the said sleeve, having a movable stud arrangedtherethrough, the relief-pin P, connecting said hub and sleeve, thesliding collar mounted to slide on said shaft and supported on saidmovable stud, a lever, as M, one arm engaging with said sliding collarand its other arm connected by a rod, and suitable gearing with theshipper'actuating mechanism of the loom, substantially as and for thepurpose described.

3. The combination, with the head-operating shaft and shedding mechanismin a loom, of the flanged sleeve J, the flanged hub K and relief-pin P,and the cutters or dies P inserted in said flanges for supporting saidpin.

a. The combination, with the frame, cylinder-gear, vibrator-bars, andvibrator-gears, of the fall-stop bar disposed beneath the outer ends ofsaid vibrator-bars and eccentrically journaled at the ends in bearingson the frame and provided with the outwardly-projecting arm 0",substantially as shown, and for the purpose set forth.

5. In combination with the vibrator-bar provided with a notch in theedge thereof and a gear-locking dog mounted to slide on saidvibrator-bar, of the spring 7;, supported in the ears of the dogs andhaving the downward point or bend that engages said notch in thevibrator-bar, substantially as set forth.

6. The combination, with the retractor-shaft provided with ears 9, thecylinder-gear axle O, and cams 0, arranged thereon, of adjustableretractor-actuating arms 10, fitted onto the retractor-shaftandconnected with said ears, substantially as and for the purpose setforth.

7. The combination of the movable engaging plate or edge-piece 11 withthe retractor 8 and the gear-holding dogs I, substantially as and forthe purpose set forth.

8. In combination with the vibrators, dogs, vibrator-gears, andcylinder-gear in a loom constructed substantially as described, theretractor having the auxiliary part 18 for the shuttle-box-operatingmechanism arranged as a sleeve and supported upon the axle of the mainretractor, the auxiliary series of cams and actuating-arms connectedtherewith, whereby said auxiliary part of the retractor is operatedindependently of the operation of the main part of the retractor,substantially as set forth.

9. The combination, with the driving-pulley clutch V, shipper-rod N androcker-shaft N, mounted in the breast-frame in a loom, of a crank N,fixed on the end of said rockershaft, the stud n fixed to the frame,knucklejoint arms a and a, connecting said shipperrod with said stud,the link N connecting the center point of said knuckle-joint arms withsaid rocker-shaft crank, and the actuating-lever n for impartingmovement to said rocker-shaft, substantially as shown and described.

Witness my hand this 19th day of September, A. D. 1890.

EDWARD WRIGHT.

Witnesses;

CHAS. H. BURLEIGH, ELLA P. BLENUs.

IIO

